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Hello,
I am sure this one is going to be blatantly obvious to someone other than
me. I apologize for sending a ridicoluous amount of info I just want to
make sure that I have all the bases covered. I am trying to telnet to the
cluster from lsb.syr.edu. The two servers are rr with no weighting. I used
the latest configure from the website. I think something is funny with
route -n on the lvs-nat box see below. Thanks in advance.
Here is my setup:
(internet)
|
gateway to rest of world 128.230.102.1
|
|--------------lsb.syr.edu (telnet instigator)
|
|
|
eth0 - 128.230.102.100 (syru102-100)
|
---------------
| LVS-NAT Box |
---------------
|
eth1 - 192.168.1.1
|
---------------------
| |
| |
eth0 - 192.168.1.10 eth0 - 192.168.1.20
______________ ______________
| | | |
| real-server1 | | real-server2 |
|______________| |______________|
uname -a on lvs box:
Linux syru102-100.syr.edu 2.4.2
[root@syru102-100 /root]# ipvsadm -h |head -1
ipvsadm v1.17 2001/03/18 (compiled with popt and IPVS v0.2.7)
***I think that this might be a symptom of my problem***
the first entry of 128.230.102.100 does not make sense to me.
[root@syru102-100 /root]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
128.230.102.100 0.0.0.0 255.255.255.255 UH 0 0 0 eth0
128.230.102.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 128.230.102.1 0.0.0.0 UG 0 0 0 eth0
[root@syru102-100 /root]# netstat -an|more
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:1024 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:587 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:113 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
tcp 0 0 128.230.102.100:22 128.230.102.12:1023 ESTABLISHED
udp 0 0 0.0.0.0:1024 0.0.0.0:*
udp 0 0 0.0.0.0:111 0.0.0.0:*
udp 0 0 0.0.0.0:634 0.0.0.0:*
[root@syru102-100 /root]# more lvs_nat.conf
LVS_TYPE=VS_NAT
INITIAL_STATE=on
VIP=eth0 128.230.102.100 255.255.255.0 128.230.102.255
DIRECTOR_INSIDEIP=eth1 192.168.1.1 192.168.1.0 255.255.255.0 192.168.1.255
DIRECTOR_DEFAULT_GW=128.230.102.1
SERVICE=t telnet rr 192.168.1.10:telnet 192.168.1.20:telnet
#SERVICE=t netpipe rr realserver1:netpipe
SERVER_NET_DEVICE=eth0
SERVER_DEFAULT_GW=192.168.1.1
#----------end lvs_nat.conf------------------------------------
tcpdump from lsb.syr.edu (machine that initiated telnet connection)
(if these are two mangled I can resend them if needs be)
[root@lsb /root]# more tcpdump.telnet.host
02:42:02.005109 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203890696
0,nop,wscale 0> (DF)
02:42:02.006350 eth0 < syru102-100.syr.edu.61000 > lsb.syr.edu.35190: S
1296216952:1296216952(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9214646 203890696,nop,wscale 0> (DF)
02:42:02.006414 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.61000: R
1617576849:1617576849(0) win 0 (DF)
02:42:04.997309 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203890996
0,nop,wscale 0> (DF)
02:42:04.998036 eth0 < syru102-100.syr.edu.61000 > lsb.syr.edu.35190: S
1299208683:1299208683(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9214946 203890996,nop,wscale 0> (DF)
02:42:04.998106 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.61000: R
1617576849:1617576849(0) win 0 (DF)
02:42:10.997315 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203891596
0,nop,wscale 0> (DF)
02:42:10.998022 eth0 < syru102-100.syr.edu.61000 > lsb.syr.edu.35190: S
1305208518:1305208518(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9215546 203891596,nop,wscale 0> (DF)
02:42:10.998087 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.61000: R
1617576849:1617576849(0) win 0 (DF)
02:42:22.997312 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203892796
0,nop,wscale 0> (DF)
02:42:22.998097 eth0 < syru102-100.syr.edu.61000 > lsb.syr.edu.35190: S
1317208220:1317208220(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9216746 203892796,nop,wscale 0> (DF)
02:42:22.998162 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.61000: R
1617576849:1617576849(0) win 0 (DF)
02:42:27.995818 eth0 < arp who-has lsb.syr.edu tell syru102-100.syr.edu
02:42:27.995883 eth0 > arp reply lsb.syr.edu (0:0:f8:1f:98:f9) is-at
0:0:f8:1f:98:f9 (0:1:2:75:98:b5)
02:42:46.997317 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203895196
0,nop,wscale 0> (DF)
02:42:46.998106 eth0 < syru102-100.syr.edu.61000 > lsb.syr.edu.35190: S
1341207580:1341207580(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9219146 203895196,nop,wscale 0> (DF)
02:42:46.998172 eth0 > lsb.syr.edu.35190 > syru102-100.syr.edu.61000: R
1617576849:1617576849(0) win 0 (DF)
02:42:51.997279 eth0 > arp who-has syru102-100.syr.edu tell lsb.syr.edu
(0:0:f8:1f:98:f9)
02:42:51.997615 eth0 < arp reply syru102-100.syr.edu is-at 0:1:2:75:98:b5
(0:0:f8:1f:98:f9)
And tcpdump from eth1 on lvs-nat box:
[root@syru102-100 /root]# more inside.nat.system
21:38:27.593684 > arp who-has 192.168.1.20 tell 192.168.1.1
(0:1:2:75:96:3e)
21:38:27.593929 < arp reply 192.168.1.20 is-at 0:2:b3:20:ea:a7
(0:1:2:75:96:3e)
21:38:27.593960 > lsb.syr.edu.35190 > 192.168.1.20.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203890696
0,nop,wscale 0> (DF)
21:38:27.594224 < 192.168.1.20.telnet > lsb.syr.edu.35190: S
1296216952:1296216952(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9214646 203890696,nop,wscale 0> (DF)21:38:27.594888
> lsb.syr.edu.35190 > 192.168.1.20.telnet: R 1617576849:1617576849(0) win
0 (DF)
21:38:30.585314 > lsb.syr.edu.35190 > 192.168.1.20.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203890996
0,nop,wscale 0> (DF)
21:38:30.585554 < 192.168.1.20.telnet > lsb.syr.edu.35190: S
1299208683:1299208683(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9214946 203890996,nop,wscale 0> (DF)21:38:30.586066
> lsb.syr.edu.35190 > 192.168.1.20.telnet: R 1617576849:1617576849(0) win
0 (DF)
21:38:32.584193 < arp who-has 192.168.1.1 tell 192.168.1.20
21:38:32.584239 > arp reply 192.168.1.1 (0:1:2:75:96:3e) is-at
0:1:2:75:96:3e (0:2:b3:20:ea:a7)
21:38:36.584378 > lsb.syr.edu.35190 > 192.168.1.20.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203891596
0,nop,wscale 0> (DF)
21:38:36.584617 < 192.168.1.20.telnet > lsb.syr.edu.35190: S
1305208518:1305208518(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9215546 203891596,nop,wscale 0> (DF)21:38:36.585112
> lsb.syr.edu.35190 > 192.168.1.20.telnet: R 1617576849:1617576849(0) win
0 (DF)
21:38:48.582507 > lsb.syr.edu.35190 > 192.168.1.20.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203892796
0,nop,wscale 0> (DF)
21:38:48.582798 < 192.168.1.20.telnet > lsb.syr.edu.35190: S
1317208220:1317208220(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9216746 203892796,nop,wscale 0> (DF)21:38:48.583330
> lsb.syr.edu.35190 > 192.168.1.20.telnet: R 1617576849:1617576849(0) win
0 (DF)
21:39:12.578785 > lsb.syr.edu.35190 > 192.168.1.20.telnet: S
1617576848:1617576848(0) win 5840 <mss 1460,sackOK,timestamp 203895196
0,nop,wscale 0> (DF)
21:39:12.579081 < 192.168.1.20.telnet > lsb.syr.edu.35190: S
1341207580:1341207580(0) ack 1617576849 win 32120 <mss
1460,sackOK,timestamp 9219146 203895196,nop,wscale 0> (DF)21:39:12.579605
> lsb.syr.edu.35190 > 192.168.1.20.telnet: R 1617576849:1617576849(0) win
0 (DF)
21:39:17.578416 < arp who-has 192.168.1.1 tell 192.168.1.20
21:39:17.578435 > arp reply 192.168.1.1 (0:1:2:75:96:3e) is-at
0:1:2:75:96:3e (0:2:b3:20:ea:a7)
If you have read all the way down to here I would like to thank you again
for helping me out. This is probably the longest plea for help I have ever
composed.
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